Finding the Fourth Proportional to 64,123.89, 88,490.79 and 35,829.60

Step by Step Solution

1. Step 1: Write the proportion equation
   64,123.89 : 88,490.79 = 35,829.60 : x
2. Step 2: Convert to fraction form
   64,123.89/88,490.79 = 35,829.60/x
3. Step 3: Cross multiply
   64,123.89x = 88,490.79 × 35,829.60
4. Step 4: Simplify right side
   64,123.89x = 3,170,589,609.38
5. Step 5: Solve for x
   x = 3,170,589,609.38/64,123.89
6. Step 6: Final answer
   x = 49,444.75